/usr/lib/dpkg/methods/disk/desc.cdrom is in dselect 1.17.5ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | Installation from a CD-ROM containing a Debian distribution. The
CD-ROM may be or not be mounted already; it should contain a standard
ISO9660 CD-ROM filesystem.
|